Welcome to Umm Ar Rasas
Umm Ar Rasas was once the Roman garrison town of Lehum, built in AD 300 to house the 4th Roman Legion, and forming part of a line of forts called the Limes Arabicus, which defended Rome's most remote borders. It houses several ruined Byzantine churches, including the Church of St Stephen, which has some notable mosaics.
About 1.5km north of the ruins is an enigmatic 15m-tall stone tower, which baffles archaeologists as there are no stairs inside but several windows at the top. It was most likely a retreat for stylites (early Christian hermits who lived at the top of pillars). Crosses decorate the side of the tower and some ruined monastery buildings lie nearby.